APA

Kaliyaperumal T. E., . (1972). Edward Jennar (t). : .

Chicago

Kaliyaperumal T E, . 1972. Edward Jennar (t). : .

Harvard

Kaliyaperumal T. E., . (1972). Edward Jennar (t). : .

MLA

Kaliyaperumal T E, . Edward Jennar (t). : . 1972.